fixes #5753: Engines can now override autocomplete path used in FiltersHelper

fixes #5553: FiltersHelper#search_path returns an empty string for unrecognized resources

fixes #4625 - ensures alerts can have close opt disabled

fixes #812 - new permissions model, user group role and nest support, role filters for better granularity

• Daniel Lobato <elobatocs@gmail.com>
• Joseph Magen <jmagen@redhat.com>
• Tom McKay <thomasmckay@redhat.com>
• Greg Sutcliffe <gsutclif@redhat.com>...

fixes #3999 - refactor DRY implementation of "nested label" for objects with ancestry

fixes #2378 - added Minitest and other code cleanups

fixes #1957 - remove old libvirt hypervisors code

Since foreman 1.0 libvirt hypervisors are now part of compute resources
this patch removes the old code and migrate any existing hypervisors to
be libvirt based compute resources.

feature #1906 add Trend information

Signed-off-by: Amos Benari <abenari@redhat.com>
Signed-off-by: Ohad Levy <ohadlevy@gmail.com>

Fixes #1789 - Parent hostgroup name is truncated when its sub-group is a sub-string of the parent hostgroup name

adds ec2 provisioning support fixes #1223

- added progress bar for instance creation
- minor fixes for certname based deployments
- added ssh provisioning support to orchestartion, which utilize finish
scripts by default
- added images support (part of the vm compute tab)...